Ensilage-elevator.



G. 0. BROWN.

ENSILAGE ELEVATOR.

APPLICATION FILED JUNE 5, 1913.

1 ,O94,872. Patented Apr. 28, 1914.

2 SHEETS-SHEET 1.

avwewtoz COLUMBIA PLANOGRAPH c0.. WASHINGTON. D. c.

C. 0. BROWN.

ENSILAGE ELEVATOR.

APPLICATION FILED JUNE 5, 1913.

1,094,872. Patented Apr. 28, 1914.

2 SHEETS-SHEET 2.

COLUMBIA PLANOGRAPH cc.. WASHINGTON, D4 c.

UNITED STATES PATENT QFFICE.

CHARLES 0'. BROWN, OF EL RENO, OILLAHOMA.

ENSILAGE-ELEVAT OR.

To aZZ whom it may concern:

Be it known that I, CHARLES C. BROWN, citizen of the United States, residing at El Reno, in the county of Canadian and State of Oklahoma, have invented certain new and useful Improvements in Ensilage- Elevators, of which the following is a specification.

This invention relates to elevators and more particularly to an elevator designed for use in a silo and it is the primary aim of the invention to so construct and arrange the elevator that by its use the ensilage may be readily and conveniently removed from the silo.

The salient feature of the invention resides in the provision of means for taking up or letting out the cable which supports the elevator and its counterweight so that the travel of the counterweight in its guideways may be regulated to correspond with the travel of the elevator cage.

For a full understanding of the invention reference is to be had to the following description and accompanying drawing, in which Figure 1 is a view in elevation of the elevator embodying the present invention. Fig. 2 is a vertical sectional view taken in a plane from front to rear upon the line 2-2 of Fig. 1 and looking in the direction indicated by the arrows. Fig. 3 is a horizontal sectional view on the line 33 of Fig. 2.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawing by the same reference characters.

In the drawing the numeral 1 indicates in general a silo the roof of which is provided with an opening 2. Arranged with in the silo are slides 3 between which the elevator cage 4L is arranged to travel. It will be observed by reference to Fig. 1 of. the drawings that the slides 8 extend through and above the opening 2 so that the cage, when elevated, will be above the roof of the silo. The cage is of the ordinary construction and is open at its top and front and at its top is provided with the usual cross-beam 5 to which, ordinarily, the hoisting cable is secured. This cable is indicated in the drawings by the numeral 6 and is trained over a pulley 7 which is fixed upon a shaft 8 mounted in suitable brackets 9 which are secured to any suitable support indicated at 10. The hoist ing cable 6 is connected at one end to a Specification of Letters Patent.

Application filed June 5. 1913.

Patented Apr. 28, 1214.

Serial No. 771,959.

counterweight which is indicated by the numeral 11 and which is slidably mounted in a guideway indicated at 12, the said guideway being arranged between the slides 3 and in rear of the cage at. The said cage is sup ported by the cable 6 in a manner which will be presently explained.

Fixed upon the shaft 8 is a gear 13 which meshes with a pinion 14 fixed upon a counter-shaft 15 also mounted in the brackets 9. The shaft 15 has secured upon it a brakewheel 16 cooperating with which is a brake shoe mounted for rocking movement in a bracket 18. A cable 19 is connected at one end to the brake-shoe and is trained over a pulley 20 also mounted upon the support 10 and it will be apparent by reference to Fig. 2 that by pulling upon the cable 19 the shoe 17 will be so rocked as to bring its end opposite its end to which the cable is connected, into engagement with the periphery of the wheel 16, whereby to retard the movement of the shaft 15. A pulley 21 is fixed upon the said shaft 15 and over it is trained a pull rope 22 by means of which rotative movement may be imparted to the shaft 15, manually.

As before stated, it is the aim of the present invention to provide means for taking up or letting out the cable 6 so that the distance traveled by the cage 4; and its counterweight 11 may be madeto correspond. In accomplishing this aim the cable 6 is led through an opening 23 in the cross-beam 5 and is trained beneath a pulley 24 mounted upon the under side of the said beam. The end of the cable is connected as indicated at 25 to a drum 26 which is mounted in a suitable casing 27 also fixed to the beam 5. One journal of the drum 26 is squared as indicated at 28 to permit of the engagement therewith of a crank-handle (not shown) by means of which the drum may be rotated so as to wind the cable 6 upon it or to unwind the cable.

In order that the drum may not have backward or reverse movement after the cable has been wound thereon, a ratchet 29 is fixed upon the squared journal 28 and a pawl 30 pivoted upon one end of the casing 27, rests in engagement with the ratchet, as clearly shown in Fig. 1, and for the purpose stated.

From the foregoing description of the inventio-n it will be apparent that when the ensilage is at first removed from the silo the cage t is only required to travel ashort distance and that as more of the contents oi the silo are removed, this distance increases, and it will further be apparent that in order to regulate the travel of the counterwcight to correspond to the travel or the cage it is only necessary that the cable 6 be unwound from the drum 26.

It will be clear from the foregoing that by the use of the pulleys 24; and drum 26, the ncces ty of extending the casing 12 for the count rweight, into the silo is entirely obviated, the c; sing as here shown being secured at its lower end to the rooi of the silo and extending but a relatively short distance thereabove.

Having thus described the invention, what is claimed as new is The combination With an elevator cage having a transverse beam located at one side thereof, and a hoisting cable ext-ending noes-e72 through the beam, of a pulley upon the under side of the beam through which the cable passes, a casing mounted upon the beam and extending inwardly toward the center of the cage, a winding drum mounted for rotation in the casing and having one of its journals projecting through the inner end wall of the casing, the hoisting cable being wound upon the drum, a ratchet fixed upon the projecting journal of the drum, and a pawl pivoted upon the said wall of the casing exteriorly thereof and resting in engagement with the ratchet.

In testimony whereof I aiiix my signature in presence of two witnesses.

CHARLES C. BROWN.

Witnesses J. I. Dnrnson, L. N. SHEPARD.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents. Washington, D. C. 

